From 103fb0bae0cf9f6cb8e9fe3a99532c7befc270b3 Mon Sep 17 00:00:00 2001
From: Reimar Leike <reimar@leike.name>
Date: Fri, 15 Jun 2018 16:45:44 +0200
Subject: [PATCH] added sample-functionality to sandwich operator when it is
analytically possible
---
nifty4/operators/sandwich_operator.py | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/nifty4/operators/sandwich_operator.py b/nifty4/operators/sandwich_operator.py
index 6dd77647d..55d96d29f 100644
--- a/nifty4/operators/sandwich_operator.py
+++ b/nifty4/operators/sandwich_operator.py
@@ -76,6 +76,12 @@ class SandwichOperator(EndomorphicOperator):
def draw_sample(self, from_inverse=False, dtype=np.float64):
# Inverse samples from general sandwiches is not possible
if from_inverse:
+ if self._bun.capabilities & self._bun.INVERSE_TIMES:
+ try:
+ s = self._cheese.draw_sample(from_inverse, dtype)
+ return self._bun.inverse_times(s)
+ except:
+ pass
raise NotImplementedError(
"cannot draw from inverse of this operator")
--
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